Format and typo fixes to 1984 README.md files

I paid a lot of attention to 1984/mullender partly because it is one of
Landon's all time favourite entries to this day and partly because it
felt like it was a good idea especially as there is a lot of
instructional value in the author's remarks that I located a while back.
However this did take quite some time so I probably won't do that for
many more entries if any more as it will slow things down tremendously.
There was an unfortunate typo fix in this README.md too: a typo in the
file, possibly a typo from the copy paste (think I copied from an image
but it might have been a pdf too in which case the original person
adding the remarks in the book cited made a typo / copy-pasted the
information from the author), which could cause confusion when reading
the remarks.

1984/decot/README.md

@@ -2,18 +2,21 @@
 
 Dave Decot  
 
+
 ## To build:
 
 ```sh
 make all
 ```
 
+
 ## To run:
 
 ```sh
 ./decot
 ```
 
+
 ### Alternate code:
 
 To try the original code that requires `-traditional-cpp`:
@@ -30,6 +33,7 @@ This program prints out a string of garbage.
 
 The judges also offer this one comment: understand remarks!
 
+
 ### Historical remarks:
 
 Some new (in 1984) compilers disliked line 15 of the original source, so we changed it
@@ -48,6 +52,7 @@ for(signal=0;*k *x * __FILE__ *i;) do {
 
 To see what we mean look at the [original source file](decot.orig.c).
 
+
 ## Author's remarks:
 
 No remarks were provided by the author.